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Session Report

Summary:
Test run at: 2020-10-10 02:08:19 GMT
Client Prefix (v4): 161.129.71.x/24
Client AS (v4): 8100 (ASN-QUADRANET-GLOBAL)
IPv4 Probes: 75
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length none
Spoof status key
receivedSpoofed packet was received.Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it.
rewrittenSpoofed packet was received, but the source address was changed en route.
blockedSpoofed packet was not received, but unspoofed packet was.
unknownNeither spoofed nor unspoofed packet was received.

IPv4 Adjacent Netblock Testing:

Your host (161.129.71.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
161.129.71.x/24/318100natblock
161.129.71.x/24/308100natblock
161.129.71.x/24/298100natblock
161.129.71.x/24/288100natblock
161.129.71.x/24/278100natblock
161.129.71.x/24/268100natblock
161.129.71.x/24/258100natblock
161.129.71.x/24/248100natblock
161.129.70.x/24/238100natblock
161.129.69.x/24/228100natblock
161.129.67.x/24/218100natblock
161.129.79.x/24/20396502natblock
161.129.87.x/24/19396521natblock
161.129.103.x/24/18UNROUTEDnatblock
161.129.7.x/24/17UNROUTEDnatblock
161.129.199.x/24/16174natblock
161.128.71.x/24/15UNROUTEDnatblock
161.131.71.x/24/14UNROUTEDnatblock
161.133.71.x/24/137018natblock
161.137.71.x/24/121761natblock
161.145.71.x/24/11UNROUTEDnatblock
161.161.71.x/24/10UNROUTEDnatblock
161.193.71.x/24/9UNROUTEDnatblock
161.1.71.x/24/8UNROUTEDnatblock

Meaning of status in Received column:

natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

IPv4 Outbound Filtering Depth:

The tracefilter test found your host unable to spoof routable, non-adjacent source addresses through even the first IP hop.
Summary:
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.
Feedback:
We welcome questions and feedback to the Spoofer Information Mailing List and invite users to join the Spoofer Users Mailing List for discussion and announcements.
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